Synopsis

PDX_MSGT gdx_LoopGetDirection(long option, MDA_PTR gdx_surf_ptr, MDA_PTR gdx_loop_ptr, int *direction)

Purpose

Get the direction of a GDX loop on a surface

Description

This function determines the direction of a GDX loop on a surface. The direction can only be determined if the loop has parameter space loops and is closed in parm space.

Input

option

(not used).

gdx_surf_ptr

Database pointer of surface which loop is on.

gdx_loop_ptr

Database pointer of Loop.

Output

direction

Direction of the GDX loop. GDX_LOOP_COUNTER_CLOCKWISE GDX_LOOP_CLOCKWISE GDX_LOOP_OPEN_PARM GDX_LOOP_UNKNOWN

Return

      Low level error return
      .fi